Google offers social log-in feature
Google is increasing the rivalry between its Google+ network and Facebook, announcing Tuesday that it is introducing its own social log-in feature. Many Web sites let Facebook and Twitter users sign into their sites with the username and password from the

Instagram reaches social media milestone: 100 million active users
Instagram, the popular photo-sharing social network purchased by Facebook last year, has reached a milestone important for any social network: 100 million monthly active users. The mobile app, which has recently begun expanding its Web presence